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Finding the Fourth Proportional to 279,095.88, 385,184.82 and 156,622.02

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Solution

The fourth proportional to 279,095.88, 385,184.82 and 156,622.02 is: 216,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,095.88 : 385,184.82 = 156,622.02 : x
  2. Step 2: Convert to fraction form
    279,095.88/385,184.82 = 156,622.02/x
  3. Step 3: Cross multiply
    279,095.88x = 385,184.82 × 156,622.02
  4. Step 4: Simplify right side
    279,095.88x = 60,328,424,581.74
  5. Step 5: Solve for x
    x = 60,328,424,581.74/279,095.88
  6. Step 6: Final answer
    x = 216,156.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.